222021210110111 has 8 divisors (see below), whose sum is σ = 229183768118784. Its totient is φ = 214858688569560.

The previous prime is 222021210110087. The next prime is 222021210110123. The reversal of 222021210110111 is 111011012120222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222021210110111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222021210110111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222021210110131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3534236 + ... + 21366638.

It is an arithmetic number, because the mean of its divisors is an integer number (28647971014848).

Almost surely, 2^{222021210110111} is an apocalyptic number.

222021210110111 is a deficient number, since it is larger than the sum of its proper divisors (7162558008673).

222021210110111 is a wasteful number, since it uses less digits than its factorization.

222021210110111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18234061.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 222021210110111 its reverse (111011012120222), we get a palindrome (333032222230333).

The spelling of 222021210110111 in words is "two hundred twenty-two trillion, twenty-one billion, two hundred ten million, one hundred ten thousand, one hundred eleven".